Optoelectronic device

[beauyy]

Dear sir,
      Can ATK be applied to calculate the performance of optoelectronic devices, for example,  photodetectors and photodiode and so on?

[Jess Wellendorff]

Hi!

Yes, ATK can certainly be used for calculating optical properties of materials, particularly semiconductors. See for example our tutorial on calculating optical properties of silicon (http://quantumwise.com/documents/tutorials/latest/SiliconOptical/index.html/index.html). The tutorial shows how to use the OpticalSpectrum analysis object to calculate the real and imaginary parts of the dielectric constant, absorption coefficient, refractive index, etc.

[beauyy]

Thanks for your reply.
     But I want to calculate the current response of electronic device to the illumination with different intensity and wavelength.

[Umberto Martinez]

No, Unfortunately you cannot do that.
What you can do is to calculate the ground state electronic structure of your system, such as band gaps, bandstructure, band alignment, and so on.